How do you use a shove knife?
The Shove Knife- You only need one because it does the
job of three! This shove knife is the fastest, damage free means of
opening residential, office interior doors with key in the knob
locks. Used extensively in fire towers to slip spring latch
The design makes the knife work from either side of the door. If
the door opens inward, you shove the knife in back of the molding
stop and retract the latch. For doors that open towards you, the
knife is slipped in from above or below the latch point and jiggled
and pulled to retract the latch. A protective sleeve is added when
not in use.